US20150090249A1 - Burner for a gas-heated cooking appliance - Google Patents
Burner for a gas-heated cooking appliance Download PDFInfo
- Publication number
- US20150090249A1 US20150090249A1 US14/390,799 US201314390799A US2015090249A1 US 20150090249 A1 US20150090249 A1 US 20150090249A1 US 201314390799 A US201314390799 A US 201314390799A US 2015090249 A1 US2015090249 A1 US 2015090249A1
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- US
- United States
- Prior art keywords
- burner
- gas
- pipe
- cooking appliance
- heated cooking
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
- F23D14/04—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner
- F23D14/06—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone induction type, e.g. Bunsen burner with radial outlets at the burner head
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23D—BURNERS
- F23D14/00—Burners for combustion of a gas, e.g. of a gas stored under pressure as a liquid
- F23D14/02—Premix gas burners, i.e. in which gaseous fuel is mixed with combustion air upstream of the combustion zone
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/10—Tops, e.g. hot plates; Rings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/08—Arrangement or mounting of burners
- F24C3/085—Arrangement or mounting of burners on ranges
Definitions
- the present invention relates a burner for a gas-heated cooking appliance.
- a burner for a gas-heated cooking appliance is known for example from WO 2006/077058 A1.
- the burner comprises a pipe for mixing burnable gas with primary air.
- the object of the present invention is to provide an improved burner for a gas-heated cooking appliance, which in particular is distinguished by high efficiency.
- a burner for a gas-heated cooking appliance with a pipe for mixing burnable gas with primary air and a deflecting element.
- the deflecting element is arranged in the interior space bounded by the pipe.
- Deflecting element here means an element which is designed to deflect the burnable gas, the primary air or both. The deflection here takes place in particular in respect of the main inflow direction of the burnable gas, of the primary air or of the mixture thereof.
- the main inflow direction may correspond to the longitudinal direction of the pipe.
- Longitudinal direction of the pipe means the direction of the pipe in which it has an essentially constant cross-section.
- one end of the pipe points to a nozzle and the other end points to a cover.
- the deflecting element can be arranged between and including a center of the pipe in respect of a longitudinal direction thereof and the one end. Experiment has shown that such an arrangement of the deflecting element surprisingly results in particularly large increases in the energy efficiency of the burner. “Including a center” means that the deflecting element can also be arranged precisely in the center.
- the deflecting element is cruciform in design. It has been found that with a cruciform element particularly large increases in the energy efficiency of the burner are possible.
- the deflecting element has at least one piece of wire.
- Such a deflecting element is simple to manufacture.
- the piece of wire has a diameter of between 0 and 3 mm, preferably between 1 and 2 mm and further preferably between 1.3 and 1.7 mm. Specifically, particularly large increases in the energy efficiency of the burner can be achieved for the values between 1.3 and 1.7 mm.
- the piece of wire is made of metal or plastic.
- the piece of wire can be formed integrally with the pipe. “Integrally” means that the pipe and the piece of wire are made of one and the same material and are formed in one piece.
- the piece of wire may also be attached in the pipe by form fit, by force fit or by bonding.
- the pipe has an inner wall, to which the piece of wire is connected at its respective ends. This means the piece of wire can easily be attached in the pipe.
- the inner wall has a diameter of between 5 and 20 mm, preferably between 8 and 14 mm and further preferably between 10 and 12 mm. Surprisingly, it was possible to achieve particularly large increases in energy efficiency for a diameter of the inner wall between 10 and 12 mm in conjunction with a piece of wire with a diameter of between 1.3 and 1.7 mm.
- the deflecting element has two pieces of wire, which are each connected to one another in the center.
- the two pieces of wire can be formed integrally with one another. Furthermore the two pieces of wire can be connected to one another for example by form fit. More than two pieces of wire can also be provided.
- the nozzle is arranged at a distance from the one end of the pipe. This means primary air can be sucked into the burnable gas flow exiting from the nozzle and into the one end of the pipe.
- the other end of the pipe opens out into a space underneath the cover, which is radially connected via flame outlets to the surrounding area.
- the pipe When the burner is installed in the gas-heated cooking appliance the pipe extends in a vertical direction. Underneath the cover the gas mixture exiting from the pipe into the space is deflected in a horizontal direction.
- the nozzle is a component of a lower part.
- the pipe can be a component of an upper part. Together the lower part and the upper part form a base.
- the cover can be placed on the upper part. The cover can define flame outlets with the upper part.
- the lower part has a chamber open on one side, into which the pipe extends.
- the chamber is in turn connected to openings to feed the primary air out of the surrounding area into the chamber.
- the space is formed underneath the cover between the upper part and the cover.
- gas-heated cooking appliance in particular a gas hob, is proposed with the inventive burner.
- the burner is designed for use in the home. This means the gas-heated cooking appliance is designed as a household appliance.
- FIG. 1 shows a perspective view of a section through a burner according to one embodiment
- FIG. 2 shows a perspective view of the burner from FIG. 1 , but with the cover removed;
- FIG. 3 shows a plan view of a deflecting element of the burner from FIG. 1 ;
- FIG. 4 shows a plan view of the section from FIG. 1 ;
- FIG. 5 shows a diagram on energy efficiency.
- FIG. 1 shows a perspective view of a section through a burner 1 according to one embodiment.
- the burner 1 is for example a component of a gas-heated cooking appliance in the form of a schematically indicated gas hob 2 .
- the gas hob 2 is designed for use in the home.
- the burner 1 comprises a lower part 3 and an upper part 4 .
- the lower and upper part 3 , 4 together form a base 5 of the burner 1 .
- a cover 6 is placed on the upper part 4 .
- the lower part 3 comprises a chamber 7 , on the floor of which a nozzle 11 is arranged.
- the nozzle 11 is connected via a gas connection 12 of the lower part 3 to a gas supply line (not shown).
- the upper part 4 comprises a plate 13 , from which a pipe 14 projects downward.
- One end 15 of the pipe 14 is directed toward the nozzle 11 and is designed to be open in respect thereof.
- the pipe 14 is integrally formed with the plate 13 and has an opening to a defined space 17 between the cover 6 and the plate 13 .
- FIG. 2 shows a perspective view of the burner from FIG. 1 , but with the cover 6 removed.
- the plate 13 has flame outlets 21 on its circumference, which entirely define it together with the cover 6 .
- the flame outlets 21 connect the space 17 (see FIG. 1 ) to the surrounding area 22 .
- a deflecting element 23 can be seen in each case, which is arranged in the interior space 24 bounded by the pipe 14 .
- the deflecting element 23 is for example designed in the form of a wire cross.
- FIG. 3 shows the deflecting element 23 from FIGS. 1 and 2 in a plan view.
- the deflecting element 23 comprises two pieces of wire 25 , 26 made of metal, which are connected to one another in the center.
- the pieces of wire 25 , 26 can be formed integrally.
- the pieces of wire 25 , 26 can be arranged at an angle of 90° to one another. Further, the pieces of wire 25 , 26 are firmly connected at their respective ends 27 to the inner wall 31 of the pipe 14 .
- the deflecting element 23 can also be formed integrally with the inner wall 31 .
- a respective piece of wire 25 , 26 has a diameter 32 of for example 1.5 mm.
- the diameter 33 of the inner wall 31 is for example 11.4 mm. This diameter 33 corresponds to the external diameter of the deflecting element 23 .
- FIG. 4 shows the section from FIG. 1 in a plan view.
- the deflecting element 23 is arranged in the center between the ends 15 , 16 of the pipe 14 .
- the correspondingly identical spacings of the deflecting element 23 from the respective ends 15 , 16 are designated in FIG. 4 by 35 .
- the deflecting element 23 could also be arranged closed to the end 15 .
- the pipe 14 can, as shown in FIG. 4 , have a cross-section which tapers in the direction of the cover 6 .
- the interior diameter of the pipe 14 in the region of the end 15 can be between 11.8 and 12.2 mm.
- the internal diameter of the pipe 14 can now be between 10.8 and 11.2 mm.
- Burnable gas 28 flowing out of the nozzle 11 in the longitudinal direction 34 of the pipe 14 is mixed with primary air 29 in the pipe 14 .
- the primary air 29 in this case enters the end 15 of the pipe 14 via a radial gap 30 between the end 15 and the nozzle 11 .
- the mixing of the burnable gas 28 with the primary air 29 is considerably improved by the deflecting element 23 .
- FIG. 5 shows a diagram on energy efficiency.
- the white column shows the measured energy efficiency for the burner 1 according to FIGS. 1-4 without the deflecting element 23 .
- the energy efficiency was 54.3%.
- the energy efficiency of the burner 1 was determined with the deflecting element 23 (see the hatched column). Surprisingly, the energy efficiency was 59.7%, in other words 5.4% above the embodiment without a deflecting element 23 .
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Gas Burners (AREA)
- User Interface Of Digital Computer (AREA)
- Regulation And Control Of Combustion (AREA)
- Feeding And Controlling Fuel (AREA)
Abstract
Description
- The present invention relates a burner for a gas-heated cooking appliance.
- A burner for a gas-heated cooking appliance is known for example from WO 2006/077058 A1. The burner comprises a pipe for mixing burnable gas with primary air.
- The object of the present invention is to provide an improved burner for a gas-heated cooking appliance, which in particular is distinguished by high efficiency.
- To achieve this object a burner is proposed for a gas-heated cooking appliance with a pipe for mixing burnable gas with primary air and a deflecting element. The deflecting element is arranged in the interior space bounded by the pipe.
- Thanks to the deflecting element the burnable gas is mixed even better with the primary air. As a result, the burnable gas combusts even better at flame outlets of the burner, so that the energy efficiency of the burner is increased. “Deflecting element” here means an element which is designed to deflect the burnable gas, the primary air or both. The deflection here takes place in particular in respect of the main inflow direction of the burnable gas, of the primary air or of the mixture thereof. The main inflow direction may correspond to the longitudinal direction of the pipe. “Longitudinal direction” of the pipe means the direction of the pipe in which it has an essentially constant cross-section.
- According to one embodiment one end of the pipe points to a nozzle and the other end points to a cover. The deflecting element can be arranged between and including a center of the pipe in respect of a longitudinal direction thereof and the one end. Experiment has shown that such an arrangement of the deflecting element surprisingly results in particularly large increases in the energy efficiency of the burner. “Including a center” means that the deflecting element can also be arranged precisely in the center.
- According to another embodiment the deflecting element is cruciform in design. It has been found that with a cruciform element particularly large increases in the energy efficiency of the burner are possible.
- According to another embodiment the deflecting element has at least one piece of wire. Such a deflecting element is simple to manufacture.
- According to another embodiment the piece of wire has a diameter of between 0 and 3 mm, preferably between 1 and 2 mm and further preferably between 1.3 and 1.7 mm. Specifically, particularly large increases in the energy efficiency of the burner can be achieved for the values between 1.3 and 1.7 mm.
- According to another embodiment the piece of wire is made of metal or plastic. The piece of wire can be formed integrally with the pipe. “Integrally” means that the pipe and the piece of wire are made of one and the same material and are formed in one piece. On the other hand the piece of wire may also be attached in the pipe by form fit, by force fit or by bonding.
- According to another embodiment the pipe has an inner wall, to which the piece of wire is connected at its respective ends. This means the piece of wire can easily be attached in the pipe.
- According to another embodiment the inner wall has a diameter of between 5 and 20 mm, preferably between 8 and 14 mm and further preferably between 10 and 12 mm. Surprisingly, it was possible to achieve particularly large increases in energy efficiency for a diameter of the inner wall between 10 and 12 mm in conjunction with a piece of wire with a diameter of between 1.3 and 1.7 mm.
- According to another embodiment the deflecting element has two pieces of wire, which are each connected to one another in the center. This means the aforementioned cruciform shape can easily be manufactured. The two pieces of wire can be formed integrally with one another. Furthermore the two pieces of wire can be connected to one another for example by form fit. More than two pieces of wire can also be provided.
- According to another embodiment the nozzle is arranged at a distance from the one end of the pipe. This means primary air can be sucked into the burnable gas flow exiting from the nozzle and into the one end of the pipe.
- According to another embodiment the other end of the pipe opens out into a space underneath the cover, which is radially connected via flame outlets to the surrounding area. When the burner is installed in the gas-heated cooking appliance the pipe extends in a vertical direction. Underneath the cover the gas mixture exiting from the pipe into the space is deflected in a horizontal direction.
- According to another embodiment the nozzle is a component of a lower part. The pipe can be a component of an upper part. Together the lower part and the upper part form a base. The cover can be placed on the upper part. The cover can define flame outlets with the upper part.
- According to another embodiment the lower part has a chamber open on one side, into which the pipe extends. The chamber is in turn connected to openings to feed the primary air out of the surrounding area into the chamber.
- According to another embodiment the space is formed underneath the cover between the upper part and the cover.
- Furthermore a gas-heated cooking appliance, in particular a gas hob, is proposed with the inventive burner.
- The burner is designed for use in the home. This means the gas-heated cooking appliance is designed as a household appliance.
- Other possible implementations of the invention also comprise not explicitly cited combinations of features or embodiments of the burner or of the cooking appliance described previously or below in respect of the exemplary embodiments. In this case the person skilled in the art will also add or modify individual aspects as improvements or additions to the respective basic form of the invention.
- Other advantageous configurations and aspects of the invention are the subject matter of the subclaims and of the exemplary embodiments of the invention described in the following. The invention is explained in greater detail below on the basis of preferred embodiments with reference to the appended figures, in which:
-
FIG. 1 : shows a perspective view of a section through a burner according to one embodiment; -
FIG. 2 : shows a perspective view of the burner fromFIG. 1 , but with the cover removed; -
FIG. 3 : shows a plan view of a deflecting element of the burner fromFIG. 1 ; -
FIG. 4 : shows a plan view of the section fromFIG. 1 ; and -
FIG. 5 : shows a diagram on energy efficiency. - In the figures the same reference characters refer to identical or functionally identical elements, unless indicated otherwise.
-
FIG. 1 shows a perspective view of a section through a burner 1 according to one embodiment. - The burner 1 is for example a component of a gas-heated cooking appliance in the form of a schematically indicated
gas hob 2. Thegas hob 2 is designed for use in the home. - The burner 1 comprises a lower part 3 and an
upper part 4. The lower andupper part 3, 4 together form abase 5 of the burner 1. Acover 6 is placed on theupper part 4. - The lower part 3 comprises a chamber 7, on the floor of which a
nozzle 11 is arranged. Thenozzle 11 is connected via agas connection 12 of the lower part 3 to a gas supply line (not shown). - The
upper part 4 comprises aplate 13, from which apipe 14 projects downward. Oneend 15 of thepipe 14 is directed toward thenozzle 11 and is designed to be open in respect thereof. At itsother end 16 thepipe 14 is integrally formed with theplate 13 and has an opening to a defined space 17 between thecover 6 and theplate 13. -
FIG. 2 shows a perspective view of the burner fromFIG. 1 , but with thecover 6 removed. - In
FIG. 2 it can be seen that theplate 13 hasflame outlets 21 on its circumference, which entirely define it together with thecover 6. Theflame outlets 21 connect the space 17 (seeFIG. 1 ) to the surroundingarea 22. - In
FIGS. 1 and 2 a deflectingelement 23 can be seen in each case, which is arranged in theinterior space 24 bounded by thepipe 14. The deflectingelement 23 is for example designed in the form of a wire cross. -
FIG. 3 shows the deflectingelement 23 fromFIGS. 1 and 2 in a plan view. - The deflecting
element 23 comprises two pieces ofwire wire wire wire pipe 14. The deflectingelement 23 can also be formed integrally with the inner wall 31. A respective piece ofwire diameter 32 of for example 1.5 mm. Thediameter 33 of the inner wall 31 is for example 11.4 mm. Thisdiameter 33 corresponds to the external diameter of the deflectingelement 23. -
FIG. 4 shows the section fromFIG. 1 in a plan view. - On the basis of
FIG. 4 the precise arrangement of the deflectingelement 23 in respect of thelongitudinal axis 34 of thepipe 14 can in particular be seen. According to the exemplary embodiment the deflectingelement 23 is arranged in the center between theends pipe 14. The correspondingly identical spacings of the deflectingelement 23 from the respective ends 15, 16 are designated inFIG. 4 by 35. However, the deflectingelement 23 could also be arranged closed to theend 15. Thepipe 14 can, as shown inFIG. 4 , have a cross-section which tapers in the direction of thecover 6. For example, the interior diameter of thepipe 14 in the region of theend 15 can be between 11.8 and 12.2 mm. In the region of theend 16, in contrast, the internal diameter of thepipe 14 can now be between 10.8 and 11.2 mm. -
Burnable gas 28 flowing out of thenozzle 11 in thelongitudinal direction 34 of the pipe 14 (seeFIG. 1 ) is mixed withprimary air 29 in thepipe 14. Theprimary air 29 in this case enters theend 15 of thepipe 14 via a radial gap 30 between theend 15 and thenozzle 11. The mixing of theburnable gas 28 with theprimary air 29 is considerably improved by the deflectingelement 23. -
FIG. 5 shows a diagram on energy efficiency. - The white column shows the measured energy efficiency for the burner 1 according to
FIGS. 1-4 without the deflectingelement 23. The energy efficiency was 54.3%. In another experiment the energy efficiency of the burner 1 was determined with the deflecting element 23 (see the hatched column). Surprisingly, the energy efficiency was 59.7%, in other words 5.4% above the embodiment without a deflectingelement 23. - Although the invention has here been described on the basis of exemplary embodiments, it can be variably modified.
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- 1 Burner
- 2 Gas hob
- 3 Lower part
- 4 Upper part
- 5 Base
- 6 Cover
- 7 Chamber
- 11 Nozzle
- 12 Connection
- 13 Plate
- 14 Pipe
- 15 End
- 16 End
- 17 Space
- 21 Flame outlets
- 22 Surrounding area
- 23 Deflecting element
- 24 Interior space
- 25 Piece of wire
- 26 Piece of wire
- 27 End
- 28 Burnable gas
- 29 Primary air
- 30 Gap
- 31 Inner wall
- 32 Diameter
- 33 Diameter
- 34 Longitudinal direction
- 35 Spacing
Claims (38)
Applications Claiming Priority (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102012206507A DE102012206507A1 (en) | 2012-04-20 | 2012-04-20 | Burner for a gas-fired cooking appliance |
DE102012206507.5 | 2012-04-20 | ||
DE102012206507 | 2012-04-20 | ||
ESP201231672 | 2012-10-31 | ||
ES201231672 | 2012-10-31 | ||
ES201231672A ES2426318R1 (en) | 2012-04-20 | 2012-10-31 | Burner for a gas heated cooking appliance |
PCT/IB2013/052850 WO2013156902A2 (en) | 2012-04-20 | 2013-04-10 | Burner for a gas-heated cooking appliance |
Publications (2)
Publication Number | Publication Date |
---|---|
US20150090249A1 true US20150090249A1 (en) | 2015-04-02 |
US10317086B2 US10317086B2 (en) | 2019-06-11 |
Family
ID=49290168
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US14/390,799 Active 2035-10-15 US10317086B2 (en) | 2012-04-20 | 2013-04-10 | Burner for a gas-heated cooking appliance |
Country Status (6)
Country | Link |
---|---|
US (1) | US10317086B2 (en) |
EP (1) | EP2839215B1 (en) |
CN (1) | CN104246368B (en) |
DE (1) | DE102012206507A1 (en) |
ES (2) | ES2426318R1 (en) |
WO (1) | WO2013156902A2 (en) |
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US10697641B2 (en) | 2016-12-19 | 2020-06-30 | Whirlpool Corporation | Orifice holder mounting system for gas cooktop |
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EP3056810B1 (en) * | 2015-02-11 | 2019-04-10 | Electrolux Appliances Aktiebolag | A gas burner assembly |
CN105864768B (en) * | 2016-05-26 | 2018-12-11 | 深圳市人人节能设备有限公司 | A kind of blowing-type constant pressure premix and porous free-standing combustion energy saving device |
US11085645B2 (en) * | 2018-05-31 | 2021-08-10 | Haier Us Appliance Solutions, Inc. | Eductor for a gas cooktop appliance |
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US10697641B2 (en) | 2016-12-19 | 2020-06-30 | Whirlpool Corporation | Orifice holder mounting system for gas cooktop |
US11236909B2 (en) | 2016-12-19 | 2022-02-01 | Whirlpool Corporation | Orifice holder mounting system for gas cooktop |
Also Published As
Publication number | Publication date |
---|---|
EP2839215B1 (en) | 2021-06-30 |
DE102012206507A1 (en) | 2013-10-24 |
EP2839215A2 (en) | 2015-02-25 |
WO2013156902A3 (en) | 2014-02-06 |
CN104246368A (en) | 2014-12-24 |
CN104246368B (en) | 2017-05-31 |
ES2887216T3 (en) | 2021-12-22 |
WO2013156902A2 (en) | 2013-10-24 |
ES2426318R1 (en) | 2014-01-23 |
ES2426318A2 (en) | 2013-10-22 |
US10317086B2 (en) | 2019-06-11 |
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